Onsrud 60-244 Downcut Spiral Router Bit 3/8 in Solid Carbide

Product Description

The ONSRUD 60-244 is a downcut spiral router bit machined from solid carbide for use in CNC routing and handheld router applications across woodworking and plastics fabrication. The three-edge, right-hand cutting geometry combined with a 10-degree helix angle and downcut flute orientation pushes chips toward the workpiece surface, reducing tearout and fraying on the top face of the material. The cutter measures 0.375 inches in diameter with a 0.625-inch length of cut and mounts on a 3/8-inch shank. Solid carbide construction provides the hardness and wear resistance needed for repetitive production runs.

This bit is rated for composite plastics, natural wood, solid surfaces, and standard plastics, making it a versatile choice for cabinet shops, sign shops, and fabricators working with laminated panels or sheet goods. The downcut action is particularly well-suited for applications where a clean, chip-free top surface is the priority, such as routed edges on finished panels or through-cuts in veneered stock. The 60-244 belongs to the ONSRUD 60-200 series.

Key Features

• Downcut flute orientation minimizes surface tearout on top face of workpiece
• Three-edge geometry for efficient chip evacuation and smooth finish
• Solid carbide construction for extended tool life in abrasive materials
• 10-degree helix angle balances cutting efficiency with surface quality
• Uncoated finish compatible with a wide range of plastics and wood species
• Right-hand cutting direction, non-piloted design for open-routing applications

Compatibility

Designed for use in CNC routers and handheld routers accepting a 3/8-inch shank collet. Rated for composite plastics, natural wood, plastics, and solid surface materials per manufacturer specifications.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the router or spindle is fully powered down and the collet is clean and dry before inserting the shank. Insert the shank to the full depth recommended by your router manufacturer and torque the collet nut according to the machine specification. Verify runout with a dial indicator before production use to protect both the tool and the workpiece.